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.TH pbsrun_unwrap 8B "6 May 2020" Local "PBS Professional"
.SH NAME
.B pbsrun_unwrap
\- unwraps mpirun, reversing 
.B pbsrun_wrap

.SH SYNOPSIS
.B pbsrun_unwrap
pbsrun.<mpirun version/flavor>

.B pbsrun_unwrap
--version

.SH DESCRIPTION
The 
.B pbsrun_unwrap
script is used to reverse the actions of the 
.B pbsrun_wrap
script.

Use 
.B pbsrun_wrap
to wrap mpirun.

Using 
.B pbsrun_unwrap
with Intel MPI is 
.B deprecated
as of 13.0.

.SH USAGE

Syntax: 
.RS 5
.B pbsrun_unwrap 
pbsrun.<mpirun version/flavor>
.RE

For example, running the following:

     pbsrun_unwrap pbsrun.ch_gm

causes the following actions:

.IP " " 5
Checks for a link in $PBS_EXEC/lib/MPI/pbsrun.ch_gm.link;
If one exists, get the pathname it points to:
.br
/opt/mpich-gm/bin/mpirun.ch_gm.actual

.IP " " 5
rm $PBS_EXEC/lib/MPI/pbsrun.mpirun.ch_gm.link

.IP " " 5
rm /opt/mpich-gm/bin/mpirun.ch_gm

.IP " " 5
rm $PBS_EXEC/bin/pbsrun.ch_gm

.RS 5
.IP "mv" 4
/opt/mpich-gm/bin/mpirun.ch_gm.actual
.br
/opt/mpich-gm/bin/mpirun.ch_gm
.RE

.SH OPTIONS
.IP "--version" 5
The 
.B pbsrun_unwrap
command returns its PBS version information and exits.
This option can only be used alone.

.SH SEE ALSO
pbs_attach(8B), 
pbsrun(8B), 
pbsrun_wrap(8B)
